For example, they talked about how felons, in many states, have major issues trying to find employment after serving their sentence. “…Not only can you not go get a job working for a corporation that exploits you, you can’t even be self-employed to produce for yourself because the state doesn’t allow it,” the rapper said.

Meanwhile, Killer Mike isn’t the only rapper fighting the problems of our criminal justice system. Rapper Commonvisits inmates in California prisons to converse with and rap for them. He was inspired to do this type of good work after working on the soundtrack for Selma.

“It really pushed me to a new level in wanting to do more,” Common told Trevor Noah on the The Daily Show last year. “I want to do that work.”